45 lines
1.4 KiB
Markdown
45 lines
1.4 KiB
Markdown
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# regjsgen [![Build status][ci-img]][ci] [![Code coverage status][codecov-img]][codecov]
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> This is a fork of [bnjmnt4n/regjsgen](https://github.com/bnjmnt4n/regjsgen) with some additional patches. The end goal is to merge these patches upstream.
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> - [be866435](https://github.com/babel/regjsgen/commit/be86643508658c70ccb5bec8bc4e3dc2479cac62) _feat: support modifiers proposal_ ([bnjmnt4n/regjsgen#28](https://github.com/bnjmnt4n/regjsgen/pull/28))
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Generate regular expressions from [regjsparser][regjsparser]’s AST.
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## Installation
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```sh
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npm i regjsgen
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```
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## API
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### `regjsgen.generate(ast)`
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This function accepts an abstract syntax tree representing a regular expression (see [regjsparser][regjsparser]), and returns the generated regular expression string.
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```js
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const regjsparser = require('regjsparser');
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const regjsgen = require('regjsgen');
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// Generate an AST with `regjsparser`.
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let ast = regjsparser.parse(regex);
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// Modify AST
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// …
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// Generate `RegExp` string with `regjsgen`.
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let regex = regjsgen.generate(ast);
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```
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## Support
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Tested in Node.js 10, 12, 14, and 16.<br>
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Compatible with regjsparser v0.7.0’s AST.
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[ci]: https://github.com/bnjmnt4n/regjsgen/actions
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[ci-img]: https://github.com/bnjmnt4n/regjsgen/workflows/Node.js%20CI/badge.svg
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[codecov]: https://codecov.io/gh/bnjmnt4n/regjsgen
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[codecov-img]: https://codecov.io/gh/bnjmnt4n/regjsgen/branch/master/graph/badge.svg
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[regjsparser]: https://github.com/jviereck/regjsparser
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